Machine for washing table utensils



, 1,640,114 Aug. 23, 1927. AADIMATOSET AL A MACHINE FOR WASHING TABLE UTENSILS med Janna. 192e v marily intended for domestic usey in bottom 11 of the vessel.

Patented Aug. 23, 1927.

aacirm :muros m eaneoar TESn um 30B 'WASHING TABLE 'UTENSM Application led January il,v 1026, Serial llo. 78,948, and in Australia February 11, 1925.

This invention relates to machines prie washing of plates, cups, saucers, cutlery, and other table ware, but usable also for the washing of other articles.

In the accompanying drawing- Fig. 1 is a vertical sectional elevation through the machine, the cradle having a tubplar centre which is supported on a centre POS Fig 2 is a fragmentary sectional plan view;

Fig. 43 is a detail sectional view on enlalged scale of the waste vent and plug;

ig. 4 is ya fragmentary sectional view showing a. modification in which the cradle is rotatably supported on a cone centre bearing and peripheral rollers; vand Fi 5 is a fragmentary sectional view showing an alternative method of fitting the driving crank and the driving spindle.

Referring to Figs. 1, 2, and 3:

are. the sides and 11 is the bottom of an open top cylindrical vessel and 12 are legsv on which said vessel is mounted. 1 3 is a vent pipe-connected by a union nut 14 to a liner flange 15 which is fixed on 'the 16 is an outflow vent in the bottom 11. 17 is a plug of hard rubber provided with a seating 18 on the top end of the vent pipe 13, and 19 is a pack ing ring. 20 is a lever connected by a link 21 to the plug`17. The lever 20 is carried on a pivot pin 22 and the back end ofit is cranked and articulated to a push rod 23 which is extended beyond the side 10 of the vessel and is there fitted with a hand knob 24. 25 isa coiled s ring sleeved over the rod 23 and set to orce said rod inward so as thereby to hold the plug 17 closed on its seating. When it is necessary to dis- -charge the vessel, the valve is opened b cal post 27 is firmly footed'in the foot piece 26 and this post is shaped at its top end to form a cone support .bearing 60 for the cradle 28 which is built on a flange 29 projecting from a central tubular sleeve 30 ware carried in the cradle which is a free fit on the post 27. The cradle 28 is thus freely rotatable on its pivot bearing around the post 27. The structural arrangement of the cradle 28 is immaterial; the wire frame arrangement shown is a convenient one inasmuch as it permits table plates, saucers, and the like to be disposed on edge more or less tangentially to the centre 27 In the post 27 a bearin is formed for the inner end of a drive s aft 33; this drive shaft passes-through a stuling box 34 in the wall 10 of the vessel and its projecting end is fitted with a hand crank '35. .On the inner end of it the drive shaft 33 carries keyed to it a bevel pinion 36 and this bevel inion meshes with .a bevel wheel 37vwhich is rotatable' on the post 27. 38 are paddles, two or more in number, arranged symmetrically and fixed to the bevel wheel 37. Whenl the hand crank 35 is rotated, the rotation is communicated through the gear train 36-37 to the paddles 38 which are caused to revolve through water contained in the vessel, so as to bring the water into rapid circulation and cause it to surge upwards on the walls 10 by centrifugal action. 39 are splasher blades fixed on the inner wall of the vesssel and projecting inwardly; these bladesl 39 are preferably inclined at a slight angle from the radial as seen best in Fig. 2, and they may be erect or disposed more or less helically as suggested in Figs. 1 and 2. The best `arrangement-found is an alternation of blades, certain ofv them being erect blades such as 40 andthe other blades being inclined more or less helically. Thel number of the blades is not very material. In practice, six or more blades are used. At the top, the vessel wall 10 is tinishedin a cupped ring 42 into which the rim. portion of the lid 43 is set; splashing and overflowing 4of wash water is minimized by this arrangement. Aconical collar near the top of the wallY 10 throws the upwardly spashed water back. into the centre of the vessel. A glass panel (not shown) may be fitted in the centre ortion of thevlid 43 if desired. 44 is a per orated pipe, the bottom end of which is brought out through a connection 45 into which water or steam may be supplied; water or steam supplied through this connection is directed in jets radially inward so as to lave the 28 during the washing operation. .The cradle 28 may be 1,640,114" APATENT oFFicE.

DmTRI IICHAL, 0F SYDNEY, NIW SOUTH AUSTRALIA.

iio

lifted out for loading and unloading. The

rotational movement of the water which is splashed tangentially over the cave and the ware carried in it, operates to impart a slow rotational movement to the cradle and facilitates the washing operation inasmuch as all sides of the ware are successively brought within the range of the splashing water proceeding from the several splasher blades 39--40.

The alternative arrangement shown in Fig. 5 provides for the omission of the central post 27 and the tubular bearing` 30. There is substituted for them a cone'point footstep 50 with a corresponding cu in the centre of the ange 29. rlhe cra e is maintained in a vertical position by means of rollers 51 fixed on the sides of the vessel, 52 being a ring rail around the under part of the cradle running 'on the rollers 51. In Fig. 5, an arrangement is shown for speeding up the shaft 33; in this case the crank is not ixed directly on the spindle 33 but is keyed to a separate spindle 54 and that s indle carries a pulley 55 which is connected by a belt 56 to a small! pulley 57 on the outer end of the spindle 33. There is a difference in degree only in all these cases in operation, which. in substance, is identical in that it consists in producing a circular surge in the Water, causing it to lnount the sides of the vessel, race up the blades 39-40 and splash inwardly towards the centre of the vessel.

lVhat we claim as our invention and desire to secure by Letters Patent is In a machine for washing tableware, a

stationary cylindrical vessel 10, a fixed Ver? A RoHin nnaa'ros.V ennoonv nnn'rni Mio. 

